Standard with EPDM gaskets. Interchangeable with other couplings and adapters. Manufactured from glass reinforced polypropylene. Key Product Specs Hose Diameter (in.) 1 1/4 x 3/4 Connector Type Reducer Nipple Thread Style Male Thread / Male Thread Material Type Glass Reinforced Polypropylene Working Pressure (PSI) 120 at 0 deg. F, 150 at 70 deg. F, 90 at 150 deg. F